#include<bits/stdc++.h>
using namespace std;
const int maxn=1e5+5;
int n,r[maxn],res;
map<int,int>m;
int main(){
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>r[i];
        m[r[i]]++;
    }
    for(int i=1;i<=n;i++){
        res=max(res,m[r[i]]);
    }
    cout<<res<<endl;
    return 0;
}
